Here is the full list of all 12 One Manga Day achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Can read and correct texts after translator.
Can translate some texts from language to language.
Can find out prerelease shortcomings.
Good Ending.
Can purify pages, make them clean.
Bad Ending II.
Can scan new pages for the team.
Bad Ending I.
Normal Ending.
Be a true professional!
Pesky birds!
Can type texts to the images.